Power supply device

1. An electric vehicle power supply configured to convert DC electrical power into AC electrical power comprising: a housing having walls forming a periphery about and defining an internal cavity; inwardly protruding tabs extending from the walls and into the cavity; a power assembly having front and end covers, and an array of electrical switching units secured to and arranged in a longitudinal direction between the front and end covers, wherein each of the switching units have an external case that houses switching circuitry, and wherein the power assembly further comprises a first framework secured to each of the front and end covers, the first framework having a first set of rails that extend between the front and end covers, engage the external cases along a first side of the array of switching units, and straddle electrical terminals that protrude from the external cases; outwardly protruding tabs extending from each of the front and end covers; and a plurality of fasteners, each extending perpendicular to the longitudinal direction and engaging one inwardly protruding tab and one outwardly protruding tab to secure the power assembly to the walls.

2. The vehicle power supply of claim 1 , wherein the power assembly further comprises a second framework secured to each of the front and end covers, the second framework having a second set of rails that extend between the front and end covers and engage the external cases along a second side of the array of switching units opposite the first side of the array of switching units.

3. The vehicle power supply of claim 1 further comprising a cooling manifold, an inlet port, and an outlet port, wherein the cooling manifold is disposed within aligned openings defined within each external case adjacent to the switching circuitry, and wherein the inlet and outlet ports extend through the front cover and through an orifice defined by one of the walls of the housing to establish fluid communication with the cooling manifold.

4. The vehicle power supply of claim 3 , wherein the inlet and the outlet ports are secured to one of the walls of the housing via a second plurality of fasteners.

5. The vehicle power supply of claim 1 , wherein the inwardly protruding tabs define through holes and the outwardly protruding tabs define tapped holes, and wherein each of the plurality of fasteners extend through one of the through holes and are threaded into one of the tapped holes to secure the power assembly to the walls.

6. An electric vehicle power supply comprising: a housing defining an internal cavity and having inwardly protruding tabs extending into the cavity; a power assembly having front and end covers and an array of electrical switching units arranged horizontally therebetween, the covers having outwardly protruding tabs, wherein each of the switching units have an external case that houses switching circuitry, and wherein the power assembly further comprises a first framework secured to each of the front and end covers, the first framework having a first set of rails that extend between the front and end covers, engage the external cases along a first side of the array of switching units, and straddle electrical terminals that protrude from the external cases; and a plurality of fasteners, each extending vertically and engaging one inwardly protruding tab and one outwardly protruding tab to secure the power assembly to the housing.

7. The vehicle power supply of claim 6 , wherein the power assembly further comprises a second framework secured to each of the front and end covers, the second framework having a second set of rails that extend between the front and end covers and engage the external cases along a second side of the array of switching units opposite the first side of the array of switching units.

8. The vehicle power supply of claim 6 further comprising a cooling manifold, an inlet port, and an outlet port, wherein the cooling manifold is disposed within aligned openings defined within each external case adjacent to the switching circuitry, and wherein the inlet and outlet ports extend through the front cover and through an orifice defined by the housing to establish fluid communication with the cooling manifold.

9. The vehicle power supply of claim 6 , wherein the inwardly protruding tabs define through holes and the outwardly protruding tabs define tapped holes, and wherein each of the plurality of fasteners extend through one of the through holes and are threaded into one of the tapped holes to secure the power assembly to the housing.

10. The vehicle power supply of claim 6 , wherein a first and a second of the inwardly protruding tabs extend into the cavity in opposing directions, respectively.

11. The vehicle power supply of claim 6 , wherein a first and a second of the inwardly extending protrusions extend into the cavity in substantially perpendicular directions relative to each other.

12. A vehicle power supply comprising: a housing having inwardly extending protrusions that define through holes; an inverter assembly disposed in the housing and having an array of electrical switching units arranged horizontally between front and end covers, each cover having an outwardly extending protrusion that defines a tapped hole, wherein each of the switching units have an external case that houses switching circuitry, and wherein the inverter assembly further comprises a first framework secured to each of the front and end covers, the first framework having a first set of rails that extend between the front and end covers, engage the external cases along a first side of the array of switching units, and straddle electrical terminals that protrude from the external cases; and a plurality of fasteners, each extending vertically through one through hole and engaging one tapped hole to secure the inverter assembly to the housing.

13. The vehicle power supply of claim 12 , wherein a first and a second of the inwardly protruding tabs extend into a cavity defined by the housing in opposing directions, respectively.

14. The vehicle power supply of claim 12 , wherein a first and a second of the inwardly extending protrusions extend into the cavity in substantially perpendicular directions relative to each other.

15. The vehicle power supply of claim 3 further comprising a coolant port adapter that is secured an exterior surface of one of the walls of the housing, wherein the coolant port adapter includes the inlet and outlet ports.

16. The vehicle power supply of claim 15 , wherein the coolant port adapter is secured to the exterior surface one of the walls of the housing via a second plurality of fasteners.

17. The vehicle power supply of claim 8 further comprising a coolant port adapter that is secured an exterior surface of the housing, wherein the coolant port adapter includes the inlet and outlet ports.

18. The vehicle power supply of claim 17 , wherein the coolant port adapter is secured to the exterior surface one of the walls of the housing via a second plurality of fasteners.

19. The vehicle power supply of claim 12 further comprising a cooling manifold, an inlet port, and an outlet port, wherein the cooling manifold is disposed within aligned openings defined within each external case adjacent to the switching circuitry, and wherein the inlet and outlet ports extend through the front cover and through an orifice defined by the housing to establish fluid communication with the cooling manifold.

20. The vehicle power supply of claim 19 further comprising a coolant port adapter that is secured an exterior surface of the housing, wherein the coolant port adapter includes the inlet and outlet ports.